Well-drilling apparatus.



l A ASA G. OGLE-INS, OF EV'ESfETE, VISSHXNGTGN.

` WELL-Dramma frenante speciaeation imminent emanarsi 5ml@ 20, 1531;@

pploatloa llc October 20, will?. Serial No. 523,877.

To all wli-ofm it may concern.

Be it knownthat l, Asa G. Contana. a citi; zen of the United States, residing at Evere-tt. in the county of Snohomisa and State of Washingtonghave invented certain new and .useful Improvements in 'Well-Drilling Apparatus, of which the following is a specilication.

This invention relates to Well boring devices; and .its objectis the provision of means whereby the operations of suoli apparatus arc facilitated.

The invention, generally stated, consists in the employmentwith a drill which is made hollow and associated with tubular connections which serve to convey water -to the l drill-hit to in the disintegration o the material and the subsequent removal of the same from the drill-hole.

The invention consist-s in the structural details and the' combinations thereof, as will be hereinafter described and cl. imcd.

ln the. accompanying drawings, Figure 1 is a. vertical elevation of apparatus embody* infn my invention. Fig. 2 is a. fragmentary elevational View of the same, with the shaft casing shown in section. Fig. 3 is a section taken through 3--3 of Fig. l. Fig. 4 is an underside plan view of a drill-lait; such as illustrated in Fig. l.

Referring to the drawings, the numeral 5 designates a drillhit which is detachalilr connected with a tubular stein 6, as by the provision of a sore threaded plug 6 interfittingr with a threaded recess of the other.

, Said bit is provided with one or more passages 7 extending from the under side. thereof and communicating through a. duct 8 in said plug with vthe chamber 9 Within the drill stem *5. Said chamber terminates with a shoulder f." at the bottom.

10 indicates a bail having its branches pivotally connected to the drill stem and serves to make connection with a hoisting line 1l 4.5 n-'hicli is operated from suitable hoisting mecha ism. Extending axially of the stem and into its chamber 9 is a rod 12 which may be of tubular form.

lrovided at. the .top end of the drill-stem and about. the rod 1Q is a Shilling-box 13' whereby the joint about the rod is packed and relative motions are. afforded tothe drill and rod. ln proximity to the upper end of the stein, itis formed with an annular recess to accommodate a sleeve 14 andl to preventthe longitudinal displacementof the sanza with respect. to the stem. "Within the sleeve is a cavity 15 which extends about the stem and is communical'ifelj,r` connected with the stein-chamber 9 through apertiires l5 pro- 1'ieled in the interening portions' of the stem-wall. Upon the sleeve is a socket l? which is interlorly screw-threaded for conxoer 32. Advantageously, the .sleeve 14 and would notbe accidentally Withdrawn ronr its companion member, the hul; 20. Such coupling means may he afforded by prolong` ing the gland securing bolt 25 Fi?. :2) to extend through and receive a check-nut helow a lug 25 provided upon the sleeve.

26 represents a easing which is driven into the groundtrom the snrace to protect the contained portions of the apparatus from caveins of the surronhdingg marterial.f

In operation, the casing firstsunk into the ground until it reaches rock or hard pan and the. ,material within the casing re moved through the medium of devices of the type illustrated and explained' in,x United States Patent No. 923535, issued March 22, i910. When this has been accomplished t e drill, comprised of the bit 5 and stem 3, is lowered with the associated rod 12 and pipe l 19 to the bottom ofthe space within said ces' l The drillis then raised by a suitable hoisting engine through the-medium of a line- 11 and, upon being released, falls to strike the work therobclow, and so on while heilig intermittently turned in the sleeve le hy manipulating the hoisting line l1 trom the ground surface. The drill by a repeti tion of such blows effects theyboring of a hole. To facilitate the boring operations and to remore the particles of disintegrated rock or body of material being norerh water employed as in thc aforesaid patented invention. The course )f the -watcr being downwardly upon the outside of the drill and its stein. thence upwardly through 'the chamber 9' within the. drill stein to the hub 20 are coupled in such manner as to v limit their separation sach that the tube 18 nected with the pipe l5) by a coupling inem: i

bit passages 7, the duct 8 and through the.

turned to the water controlling purnp by the ipe. Y

ln the stages of the Work, rod 12 and pipe 19 would he immovahly held while the drill, its stem and the tube 18 would he vertically reciprocotcd 'through the olliees of a hoisting engine. When the drill and connected parts are allowed to drop it is evidentJ that the body of water below the. drill-bit will be caused to flow with considerable rapidity through the bit-passages?" and thus coperaie 'with-the aforementioned pump and be instrumental in carrying into the chamber 9 the particles of brokenA rock or other terial produced in boring.

Al'terthe drilling of a hole has been ad coinplished for a distance, the rod 12 and pipe 19 are adjustably lowered and secured, nud the boring' operations resumed. The amount of extension or distance the pipes are to be lowered between each stage of 'operation of the drill` is regulated by lower- 'ing the rod l2 to Contact with the shoulder 9 of the drill stem when the letter is for that purpose held :it the top of its Stro te for the following stage of drilling opere.- tions. The pipe 19 is to be lowered between each stage ol the operation of the drill to have thetube 1S housed, or nearly so, in the. pipe 19 and connected hub 20.

`t is to he understood that the boring operations are ell'ected by successively dropping the drill to impur-. against the bottom oi' the boro und that as the. drill is ruised'it is given :i partial turn between the .successive strokes. In certain formations of muterirfl and also when the drill bec'oines much Worn. the drill Will oftentimes get we( ged in ii here. Under such circumstances. it can ordinarily be loosened by a repetition of jars imparted to the drill through a suc- `ion of blows delivered against the drill shoulder 9 ihronvh the instrumentality of the rod 19'.

What I clown as my invention, isf- 1. .5t Well hiring device comprising a tubular stennn uit connected to the lower end thereof and provided with passages opening inte the stem, said stem at its upper end provided with a peripheral groove with the vertical wall thereof formed with openings, u sleeve surrounding said stein nd engaging the upper and lower Walls of the groove and provided with un interiorlythreaded socket, o .vertical tuile connected to said socket, and a pi pe slidably connected to said tube.

2. A well 4boring device comprising a t.u bular stem, a bit. connected to the lower end thereof und provided with passages opening into the steni, said stem :it its upper end provided with a peripheral groove with the vertical wall thereof formed with openings, :i sleeve surrounding said stem und engaging the upper and lower Wells of the groove and provided with an interiorly threaded socket, a vertical tube' '-onnected to said socket, a pipe slidably connected to scid tube, and a tubular rod extending through the end of and into said'stem.

3. A well boring device comprising a tubular stem, a bit connected to the lower end thereof and provided with passages opening into the stem, Suid stern at its upper end provided with a peripheral groove with the vertical wall thereo formed with openings, a sleeve. surrounding said stein and engaging the upper and lower walls of the groove und provided with un interiorly threaded socket, a vertical tube connected torsaid socket, a pipe slidahly connected to said tube, a tubular rod extending through the upper end of and into said stein, and :1 hail connected to the upper end of said stem.

4. A well boring device comprising a tubular stem, :i hit connected to the lower end thereof und provided with passages opening into the stem, said stem at its upper end provided vwith u peripheral groove with the vertical wall thereof formed with openings, a sleeve. surrounding Suid stem and engaging the upper :ind lower Walls of the groove and provided with an interiorly threaded socket, c vertical tube connected to said socket` u pipe sliduhly connected to said tube, a. tubuhir rod. extending through the upper cn'd ot and into said stem, n buil connected to the upper end of seid stem, and u packing box coni'iected to the upper end of the stein and surrounding said rod.

ASA G. 'CLLINS., lVitnesses H. Bnnns, M. M. SMITH. 

